Effects of bioturbation on the fate of oil in coastal sandy sediments -an in situ experiment

Karen Timmermann, Gary Thomas Banta, Lars Klinge, Ole Andersen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Effects of bioturbation by the common lugworm Arenicola marina on the fate of oil hydrocarbons (alkanes and PAHs) were studied in situ during a simulated oil spill in a shallow coastal area of Roskilde fjord, Denmark. The fate of selected oil compounds was monitored during 120 d using GC–MS and bioturbation activity (feces production and irrigation) was measured regularly during the experiment and used as input parameters in a mechanistic model describing the effects of A. marina on the transport and degradation of oil compounds in the sediment. The chemical analytical data and model results indicated that A. marina had profound and predictable effects on the distribution, degradation and preservation of oil and that the net effect depended on the initial distribution of oil. In sediment with an oil contaminated subsurface-layer A. marina buried the layer deeper in the sediment which clearly enhanced oil persistence. Conversely, A. marina stimulated both the physical removal and microbial degradation of oil compounds
in uniformly oil contaminated sediments especially in deeper sediment layers (10–20 cm below the surface), whereas the fate of oil compounds deposited in surface layers (0–5 cm) mainly was affected by removal processes induced by wave actions and other bioturbating infauna such as Nereis diversicolor, Corophium volutator and Hydrobia spp. present in the experimental plots.
OriginalsprogEngelsk
TidsskriftChemosphere
Vol/bind82
Udgave nummer10
Sider (fra-til)1358-1366
Antal sider9
ISSN0045-6535
DOI
StatusUdgivet - mar. 2011

Emneord

  • bioturbation
  • oil pollution
  • PAHs
  • modelling

Citer dette

Timmermann, Karen ; Banta, Gary Thomas ; Klinge, Lars ; Andersen, Ole. / Effects of bioturbation on the fate of oil in coastal sandy sediments -an in situ experiment. I: Chemosphere. 2011 ; Bind 82, Nr. 10. s. 1358-1366.
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abstract = "Effects of bioturbation by the common lugworm Arenicola marina on the fate of oil hydrocarbons (alkanes and PAHs) were studied in situ during a simulated oil spill in a shallow coastal area of Roskilde fjord, Denmark. The fate of selected oil compounds was monitored during 120 d using GC–MS and bioturbation activity (feces production and irrigation) was measured regularly during the experiment and used as input parameters in a mechanistic model describing the effects of A. marina on the transport and degradation of oil compounds in the sediment. The chemical analytical data and model results indicated that A. marina had profound and predictable effects on the distribution, degradation and preservation of oil and that the net effect depended on the initial distribution of oil. In sediment with an oil contaminated subsurface-layer A. marina buried the layer deeper in the sediment which clearly enhanced oil persistence. Conversely, A. marina stimulated both the physical removal and microbial degradation of oil compounds in uniformly oil contaminated sediments especially in deeper sediment layers (10–20 cm below the surface), whereas the fate of oil compounds deposited in surface layers (0–5 cm) mainly was affected by removal processes induced by wave actions and other bioturbating infauna such as Nereis diversicolor, Corophium volutator and Hydrobia spp. present in the experimental plots.",
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author = "Karen Timmermann and Banta, {Gary Thomas} and Lars Klinge and Ole Andersen",
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Effects of bioturbation on the fate of oil in coastal sandy sediments -an in situ experiment. / Timmermann, Karen; Banta, Gary Thomas; Klinge, Lars; Andersen, Ole.

I: Chemosphere, Bind 82, Nr. 10, 03.2011, s. 1358-1366.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Effects of bioturbation on the fate of oil in coastal sandy sediments -an in situ experiment

AU - Timmermann, Karen

AU - Banta, Gary Thomas

AU - Klinge, Lars

AU - Andersen, Ole

PY - 2011/3

Y1 - 2011/3

N2 - Effects of bioturbation by the common lugworm Arenicola marina on the fate of oil hydrocarbons (alkanes and PAHs) were studied in situ during a simulated oil spill in a shallow coastal area of Roskilde fjord, Denmark. The fate of selected oil compounds was monitored during 120 d using GC–MS and bioturbation activity (feces production and irrigation) was measured regularly during the experiment and used as input parameters in a mechanistic model describing the effects of A. marina on the transport and degradation of oil compounds in the sediment. The chemical analytical data and model results indicated that A. marina had profound and predictable effects on the distribution, degradation and preservation of oil and that the net effect depended on the initial distribution of oil. In sediment with an oil contaminated subsurface-layer A. marina buried the layer deeper in the sediment which clearly enhanced oil persistence. Conversely, A. marina stimulated both the physical removal and microbial degradation of oil compounds in uniformly oil contaminated sediments especially in deeper sediment layers (10–20 cm below the surface), whereas the fate of oil compounds deposited in surface layers (0–5 cm) mainly was affected by removal processes induced by wave actions and other bioturbating infauna such as Nereis diversicolor, Corophium volutator and Hydrobia spp. present in the experimental plots.

AB - Effects of bioturbation by the common lugworm Arenicola marina on the fate of oil hydrocarbons (alkanes and PAHs) were studied in situ during a simulated oil spill in a shallow coastal area of Roskilde fjord, Denmark. The fate of selected oil compounds was monitored during 120 d using GC–MS and bioturbation activity (feces production and irrigation) was measured regularly during the experiment and used as input parameters in a mechanistic model describing the effects of A. marina on the transport and degradation of oil compounds in the sediment. The chemical analytical data and model results indicated that A. marina had profound and predictable effects on the distribution, degradation and preservation of oil and that the net effect depended on the initial distribution of oil. In sediment with an oil contaminated subsurface-layer A. marina buried the layer deeper in the sediment which clearly enhanced oil persistence. Conversely, A. marina stimulated both the physical removal and microbial degradation of oil compounds in uniformly oil contaminated sediments especially in deeper sediment layers (10–20 cm below the surface), whereas the fate of oil compounds deposited in surface layers (0–5 cm) mainly was affected by removal processes induced by wave actions and other bioturbating infauna such as Nereis diversicolor, Corophium volutator and Hydrobia spp. present in the experimental plots.

KW - bioturbation

KW - oil pollution

KW - PAHs

KW - modelling

U2 - 10.1016/j.chemosphere.2010.11.077

DO - 10.1016/j.chemosphere.2010.11.077

M3 - Journal article

VL - 82

SP - 1358

EP - 1366

JO - Chemosphere

JF - Chemosphere

SN - 0045-6535

IS - 10

ER -